If not, check {server-www-home}/wiki/LocalSettings.php for $wgRC2UDPAddress and make sure it is set to the right host (or IP) (e.g. 'freenode.loqi.me').

Log any changes you make (at least locally yourself), so you can revert anything in case something unexpected/unrelated goes wrong, then investigate *after* reverting so people can keep using the site.

Changes should take effect immediately after edits to LocalSettings.php are saved (no need to restart MediaWiki or Apache).

mailing list archives

shorteners

other

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transition older pages to public domain

Per Microformats_Wiki:Copyrights, perform the following steps to transition a page created/edited before 2007-12-29 to public domain (pages created after that point are already in the CC0 compatible public domain).